title: Long-wavelength mid-infrared reflectors using guided-mode resonance.
abstract: We have proposed and fabricated a new mid-infrared reflector using the guided-mode resonance (GMR). The GMR reflector consists of subwavelength Ge grating on GaAs substrate with a low-refractive-index SiOx layer in between. With a total thickness of about 2 μm, a near-100% reflectivity at 8 μm has been obtained both theoretically and experimentally.
authors.forename: Kou-Wei
authors.initials: KW
authors.lastname: Lai
authors.forename: Sheng-Di
authors.initials: SD
authors.lastname: Lin
authors.forename: Zong-Lin
authors.initials: ZL
authors.lastname: Li
authors.forename: Chi-Cheng
authors.initials: CC
authors.lastname: Wang